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ROG Crosshair VI overclocking thread - Page 973

post #9721 of 17024
Anyone know if there are some Samsung B-based DRAM modules currently being sold for 3600 Mhz? I was thinking next month when AMD releases the new update that maybe 3600 Mhz DRAM would work and that I could possible run both Ryzen and DRAM at the same clock speed of 3600 Mhz. Is this possible yet or will it be possible by June at least? Any reasons not to run both DRAM and SoC at the same frequency?

Considering memory speed seems to be a big deal for Ryzen I am wondering if higher RAM is more important this time around then simply overclocking the CPU. 3.6Ghz DRAM + 3.6Ghz Ryzen sounds quite nice to me.
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post #9722 of 17024
Quote:
Originally Posted by }SkOrPn--' View Post

Anyone know if there are some Samsung B-based DRAM modules currently being sold for 3600 Mhz? I was thinking next month when AMD releases the new update that maybe 3600 Mhz DRAM would work and that I could possible run both Ryzen and DRAM at the same clock speed of 3600 Mhz. Is this possible yet or will it be possible by June at least? Any reasons not to run both DRAM and SoC at the same frequency?

Considering memory speed seems to be a big deal for Ryzen I am wondering if higher RAM is more important this time around then simply overclocking the CPU. 3.6Ghz DRAM + 3.6Ghz Ryzen sounds quite nice to me.

Hello

F4-3600C15D-16GTZ are B-Die
post #9723 of 17024
Quote:
Originally Posted by Raja@ASUS View Post

To add more confusion, here's what I actually said:

http://www.overclock.net/t/1624603/rog-crosshair-vi-overclocking-thread/8640#post_26007418


And to up the ante towards confusion heaven: do not compare standing voltage and overshoot. They are two different things. An oscillation means the power supplies impedance has been compromised at the oscillating frequency. That's why a standing voltage is preferred to using a higher LLC that has to ramp when faced with load.

Good thing we only have 9700-odd messages to remember, or this would become difficult. biggrin.gif
     
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post #9724 of 17024
Quote:
Originally Posted by Raja@ASUS View Post

Put the tinfoil hat away. It's the same 0079 as you guys have.

I'm not saying it isn't. I'm just suggesting it could be a different one if you are in development. Nothing more so please read whole story before answering..
post #9725 of 17024
Quote:
Originally Posted by Gadfly View Post

Settings:

BIOS 0081
CPU Ratio: 41.25
CPU VCore: 1.425
LLC2

Dram v: 1.41v
Dram boot: 1.42v
SOC: 1.05v
Pll: 1.85v
VTTDDR: 0.685v



Note: I may have to look into Safe voltage on this ram a little more, I saw some errors with the m.2 drive that go away at 12-12-12-26.@ 1.41v, I suspect that 1.42 or 1.43 may be required to run 12-11-11-22 or 11-11-11-22 (I can train and boot at 11-11-11-22, but it is unstable at 1.41v).


how I boot:

I have a saved profile with all the voltage settings and a 4ghz cpu / 3200 memory at 14-14-14-34.

I boot into windows, reboot, enter bios and then tighten the timings, F10, and it will boot into windows with the same settings.
Nice.

I am running BIOS 1002, which I've found very stable.
I've tried to run my Trident Z 3200 Mhz at CL12, but they absolutely don't want to.

I have 2 x 8 Gb F4-3200C14D-16GTZ (single rank Samsung B-Die), the lowest timings I can make them work at 3200 Mhz is CL13.
I am also able to make them run at 3600 Mhz (with BCLK OC) and CL13, but in any case I've been able to make them run at CL12.

I give them 1.385 V both for 3200 and 3600 Mhz to work (1.4 V for BOOT Voltage).
Tried to give them up to 1.5 V to get them work at CL12, but didn't obtain any better result.
Edited by Crysis90 - 4/16/17 at 3:30pm
post #9726 of 17024
Quote:
Originally Posted by TwoBeers View Post

What do you mean? I have 30°C idle and 72°C on IBT. The rest of the temps (VRM, CPU Socket, Mainboard) are in that range (VRM, Mainboard like 15°C cooler).
Looks fine to me. smile.gif

Edit: Or do you mean the whole variable offset thingy Timur Born is reporting? Ok, something's fishy there. But for normal day to day operation it works quite well, at least for me. wink.gif

Your temps are likely 10-15° above that under load.
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Inferior FTW!
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FrankenRyzen
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post #9727 of 17024
I copied Elmor's setting from the OP to get 3465-CL14 working. The 3200-CL14 did not run Memtest stable at 1.4 V, though. I'm trying the 4000-CL18 dimms now.

What I noticed is that Elmor uses a quite high PLL voltage of 2.1+ V for these settings, but left DDP alone. I also observed that PLL is increased to over 2 V when set on Auto in combination with higher CPU OC. Now I wonder what the combination of RAM and CPU OC would mean to PLL settings?

What does PLL do exactly and how does it add up with the various overclocks and other voltages (Vcore, SOC and DPP)?
post #9728 of 17024
Quote:
Originally Posted by Timur Born View Post

I copied Elmor's setting from the OP to get 3465-CL14 working. The 3200-CL14 did not run Memtest stable at 1.4 V, though. I'm trying the 4000-CL18 dimms now.

What I noticed is that Elmor uses a quite high PLL voltage of 2.1+ V for these settings, but left DDP alone. I also observed that PLL is increased to over 2 V when set on Auto in combination with higher CPU OC. Now I wonder what the combination of RAM and CPU OC would mean to PLL settings?

What does PLL do exactly and how does it add up with the various overclocks and other voltages (Vcore, SOC and DPP)?

PLL voltage as it reads in BIOS helps with BCLK overclocking. For whem when I was doing standard overclocking with 109.2 bclk for 4ghz with auto cpu voltage as the base, auto PLL voltage also gave me 2v, but switching to pstate overclocking with the same frequency target, auto PLL voltage switched back to 1.8v, same bclk.

One wonky thing I have noticed when altering PLL voltage is tctl and cpu temperatures also get altered to a large degree with either increase or decrease in PLL voltage. If you can decrease your PLL voltage to 1.7, you will notice unbelievablly low CPU temperatures, while raising pll above 1.8 raises cpu temperatures the same. This however might not happen for everyone, but it certainly happens for me.
post #9729 of 17024
Quote:
Originally Posted by SpecChum View Post

Righto, I've changed motherboard and my god did I put too much TIM on oops biggrin.gif

Took me ages to clean it all off.

I was a little more conservative with this one, lets hope there's enough.

Most importantly, and the whole reason for this exercise, I HAVE LIGHTS!

Hell yeah! Glad to gear you got it worked out!I know you had been fighting it for awhile, sorry you had to get a new board frown.gif


On to greatness!
Edited by Gadfly - 4/16/17 at 4:12pm
post #9730 of 17024
Quote:
Originally Posted by Timur Born View Post

I copied Elmor's setting from the OP to get 3465-CL14 working. The 3200-CL14 did not run Memtest stable at 1.4 V, though. I'm trying the 4000-CL18 dimms now.

What I noticed is that Elmor uses a quite high PLL voltage of 2.1+ V for these settings, but left DDP alone. I also observed that PLL is increased to over 2 V when set on Auto in combination with higher CPU OC. Now I wonder what the combination of RAM and CPU OC would mean to PLL settings?

What does PLL do exactly and how does it add up with the various overclocks and other voltages (Vcore, SOC and DPP)?

Good question, I'd like some insight into that too.

Btw: has anyone who overclocked using BCLK and p-state noticed the vcore offset mode behaving strange?
Quote:
Originally Posted by Reikoji View Post

PLL voltage as it reads in BIOS helps with BCLK overclocking. For whem when I was doing standard overclocking with 109.2 bclk for 4ghz with auto cpu voltage as the base, auto PLL voltage also gave me 2v, but switching to pstate overclocking with the same frequency target, auto PLL voltage switched back to 1.8v, same bclk.

One wonky thing I have noticed when altering PLL voltage is tctl and cpu temperatures also get altered to a large degree with either increase or decrease in PLL voltage. If you can decrease your PLL voltage to 1.7, you will notice unbelievablly low CPU temperatures, while raising pll above 1.8 raises cpu temperatures the same. This however might not happen for everyone, but it certainly happens for me.

Yep, temp increase (or at least increased readings) is quite noticeable here aswell.
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